class-search.php — Jetpack – WP Security, Backup, Speed, & Growth 16.2-a.1

jetpack / jetpack_vendor / automattic / jetpack-sync / src / modules / class-search.php

jetpack / jetpack_vendor / automattic / jetpack-sync / src / modules Last commit date

class-search.php

1917 lines

1	<?php
2	/**
3	* Configuration lists for Jetpack Search Fields
4	*
5	* Post Meta: list of post meta keys that are available in the index
6	* and how they are configured.
7	*
8	* Custom Taxonomy: list of custom taxonomies that are indexed.
9	*
10	* The reason we need an allowed list is that Elasticsearch runs into scaling problems
11	* with more than 200k-ish total fields. The barrier to adding new fields is low,
12	* just open a PR.
13	*
14	* Although the comments indicate specific plugins, you don't need to be running
15	* that plugin for the indexing to work. The metakey just has to match.
16	*
17	* If you need a new meta key or taxonomy also consider using:
18	* jetpack-search-meta0 - jetpack-search-meta9
19	* jetpack-search-tag0 - jetpack-search-tag9
20	*
21	* @package automattic/jetpack-sync
22	*/
23
24	namespace Automattic\Jetpack\Sync\Modules;
25
26	if ( ! defined( 'ABSPATH' ) ) {
27	exit( 0 );
28	}
29
30	/**
31	* Class to handle sync for Jetpack Search.
32	*/
33	class Search extends Module {
34
35	/**
36	* Sync module name.
37	*
38	* @access public
39	*
40	* @return string
41	*/
42	public function name() {
43	return 'search';
44	}
45
46	/**
47	* Constructor.
48	*/
49	public function __construct() {
50	// Post meta whitelists.
51	add_filter( 'jetpack_sync_post_meta_whitelist', array( $this, 'add_search_post_meta_whitelist' ), 10 );
52	// Add options
53	add_filter( 'jetpack_sync_options_whitelist', array( $this, 'add_search_options_whitelist' ), 10 );
54	// AI Answers CPTs and post meta (gated by feature flag).
55	add_filter( 'jetpack_sync_post_types_whitelist', array( $this, 'add_ai_answer_post_types' ), 10 );
56	}
57
58	/**
59	* Post meta search specification.
60	*
61	* We sync and index all meta keys in this list. Additionally there are a few
62	* options.
63	*
64	* 'metakey' => [ 'searchable_in_all_content' => true ],
65	* Field will be included in the all_content fields
66	*
67	* 'metakey' => [ 'available' => false, 'alternatives' => [ 'metakey_processed' ] ],
68	* Field not in meta.* but has data in an alternative field(s) name that
69	* should work similarly. For instance, woocommerce total_sales does not go into
70	* the index, but the percentage of sales does.
71	*
72	* @static
73	* @access private
74	* @var array
75	*/
76	private static $postmeta_to_sync = array(
77	// jetpack.
78	'_guideline_block_jetpack_search-ai-summary' => array(), // AI Answers personality (Gutenberg Guidelines CPT).
79	'jetpack-search-meta0' => array( 'searchable_in_all_content' => true ),
80	'jetpack-search-meta1' => array( 'searchable_in_all_content' => true ),
81	'jetpack-search-meta2' => array( 'searchable_in_all_content' => true ),
82	'jetpack-search-meta3' => array( 'searchable_in_all_content' => true ),
83	'jetpack-search-meta4' => array( 'searchable_in_all_content' => true ),
84	'jetpack-search-meta5' => array( 'searchable_in_all_content' => true ),
85	'jetpack-search-meta6' => array( 'searchable_in_all_content' => true ),
86	'jetpack-search-meta7' => array( 'searchable_in_all_content' => true ),
87	'jetpack-search-meta8' => array( 'searchable_in_all_content' => true ),
88	'jetpack-search-meta9' => array( 'searchable_in_all_content' => true ),
89
90	// woocommerce.
91	'exclude_product_categories' => array(),
92	'exclude_product_ids' => array(),
93	'free_shipping' => array(),
94	'id_field' => array(),
95	'individual_use' => array(),
96	'limit_usage_to_x_items' => array(),
97	'maximum_amount' => array(),
98	'minimum_amount' => array(),
99	'post_id' => array(),
100	'product_categories' => array( 'searchable_in_all_content' => true ),
101	'product_ids' => array(),
102	'total_sales' => array(
103	'available' => false,
104	'alternatives' => array(
105	'wc.percent_of_sales',
106	),
107	),
108	'usage_limit' => array(),
109	'usage_limit_per_user' => array(),
110	'_crosssell_ids' => array(),
111	'_downloadable' => array(),
112	'_featured' => array(),
113	'_height' => array(),
114	'_length' => array(),
115	'_price' => array(
116	'alternatives' => array(
117	'wc.price',
118	'wc.min_price',
119	'wc.max_price',
120	),
121	),
122	'_prices_include_tax' => array(),
123	'_product_attributes' => array(),
124	'_product_version' => array(),
125	'_regular_price' => array(
126	'alternatives' => array(
127	'wc.regular_price',
128	),
129	),
130	'_sale_price' => array(
131	'alternatives' => array(
132	'wc.sale_price',
133	),
134	),
135	'_sale_price_dates_from' => array(),
136	'_sale_price_dates_to' => array(),
137	'_sku' => array( 'searchable_in_all_content' => true ),
138	'_stock_status' => array(),
139	'_wc_average_rating' => array(
140	'alternatives' => array(
141	'wc.ave_rating_score',
142	),
143	),
144	'_wc_rating_count' => array(
145	'alternatives' => array(
146	'wc.rating', // wc.rating.count_1, wc.rating.count_2, ...
147	),
148	),
149	'_wc_review_count' => array(),
150	'_weight' => array(),
151	'_width' => array(),
152
153	// co-authors plus.
154	'cap-description' => array( 'searchable_in_all_content' => true ),
155	'cap-user_login' => array( 'searchable_in_all_content' => true ),
156	'cap-user_email' => array(),
157	'cap-last_name' => array( 'searchable_in_all_content' => true ),
158	'cap-first_name' => array( 'searchable_in_all_content' => true ),
159	'cap-display_name' => array( 'searchable_in_all_content' => true ),
160	'cap-website' => array(),
161	'cap-jabber' => array(),
162	'cap-aim' => array(),
163	'cap-twitter' => array(),
164	'cap-facebook' => array(),
165	'cap-google_plus' => array(),
166	'cap-job_title' => array( 'searchable_in_all_content' => true ),
167
168	// bbpress.
169	'bbpl_like' => array(),
170	'bbpress_discussion_comments_copied' => array(),
171	'bbpress_discussion_tags_copied' => array(),
172	'bbpress_discussion_topic_id' => array(),
173	'bbpress_discussion_use_defaults' => array(),
174	'bbpress_page_header_bg' => array(),
175	'bbpress_title_bg' => array(),
176	'use_bbpress_discussion_topic' => array(),
177
178	// wpml.
179	'tm_meta_wpml' => array(),
180	'wpml_language' => array(),
181	'wpml_media_lang' => array(),
182	'wpml_media_processed' => array(),
183
184	// blogger import.
185	'blogger_author' => array( 'searchable_in_all_content' => true ),
186	'blogger_blog' => array( 'searchable_in_all_content' => true ),
187	'blogger_permalink' => array( 'searchable_in_all_content' => true ),
188
189	// geo.
190	'geo_address' => array( 'searchable_in_all_content' => true ),
191	'geo_latitude' => array(),
192	'geo_longitude' => array(),
193	'geo_public' => array(),
194	'geolocated' => array(),
195	'geolocation_city' => array( 'searchable_in_all_content' => true ),
196	'geolocation_country_long' => array( 'searchable_in_all_content' => true ),
197	'geolocation_country_short' => array( 'searchable_in_all_content' => true ),
198	'geolocation_formatted_address' => array( 'searchable_in_all_content' => true ),
199	'geolocation_lat' => array(),
200	'geolocation_long' => array(),
201	'geolocation_postcode' => array( 'searchable_in_all_content' => true ),
202	'geolocation_state_long' => array( 'searchable_in_all_content' => true ),
203	'geolocation_state_short' => array( 'searchable_in_all_content' => true ),
204
205	// wp-ultimate-recipe.
206	'recipe_alternate_image' => array(),
207	'recipe_cook_time' => array(),
208	'recipe_cook_time_text' => array(),
209	'recipe_description' => array( 'searchable_in_all_content' => true ),
210	'recipe_ingredients' => array( 'searchable_in_all_content' => true ),
211	'recipe_instructions' => array( 'searchable_in_all_content' => true ),
212	'recipe_notes' => array( 'searchable_in_all_content' => true ),
213	'recipe_nutritional' => array( 'searchable_in_all_content' => true ),
214	'recipe_passive_time' => array(),
215	'recipe_passive_time_text' => array(),
216	'recipe_prep_time' => array(),
217	'recipe_prep_time_text' => array(),
218	'recipe_rating' => array(),
219	'recipe_servings' => array(),
220	'recipe_servings_normalized' => array(),
221	'recipe_servings_type' => array(),
222	'recipe_terms' => array( 'searchable_in_all_content' => true ),
223	'recipe_terms_with_parents' => array(),
224	'recipe_title' => array( 'searchable_in_all_content' => true ),
225	'recipe_user_ratings' => array(),
226	'recipe_user_ratings_rating' => array(),
227
228	// generic fields.
229	// from advanced-custom-fields and metabox.io .
230	'Link' => array(),
231	'Location' => array(),
232	'Title' => array( 'searchable_in_all_content' => true ),
233	'ad_code' => array(),
234	'address' => array(),
235	'admin_mail' => array(),
236	'admin_only' => array(),
237	'advertisers' => array( 'searchable_in_all_content' => true ),
238	'age' => array(),
239	'aliases' => array(),
240	'alternate_title' => array(),
241	'ama_content' => array(),
242	'amazon' => array(),
243	'answer' => array( 'searchable_in_all_content' => true ),
244	'area' => array(),
245	'attention' => array(),
246	'attr' => array(),
247	'author' => array( 'searchable_in_all_content' => true ),
248	'author_name' => array( 'searchable_in_all_content' => true ),
249	'blog' => array(),
250	'blog_id' => array(),
251	'call_to_action' => array(),
252	'campaign_preview' => array(),
253	'canonical_url' => array(),
254	'catch_text' => array(),
255	'category' => array( 'searchable_in_all_content' => true ),
256	'classificacao' => array(),
257	'classification' => array(),
258	'code' => array(),
259	'codigo' => array(),
260	'company' => array( 'searchable_in_all_content' => true ),
261	'company_website' => array(),
262	'config' => array(),
263	'construction' => array(),
264	'container_ids' => array(),
265	'content' => array( 'searchable_in_all_content' => true ),
266	'content_body-full_content' => array( 'searchable_in_all_content' => true ),
267	'copyright' => array(),
268	'custom_page_title' => array( 'searchable_in_all_content' => true ),
269	'custom_permalink' => array(),
270	'customize' => array(),
271	'data' => array(),
272	'date' => array(),
273	'day' => array(),
274	'descripcion' => array( 'searchable_in_all_content' => true ),
275	'description' => array( 'searchable_in_all_content' => true ),
276	'display_settings' => array(),
277	'display_type' => array(),
278	'duration' => array(),
279	'embed' => array(),
280	'entity_ids' => array(),
281	'entity_types' => array(),
282	'event_subtitle' => array( 'searchable_in_all_content' => true ),
283	'excluded_container_ids' => array(),
284	'exclusions' => array(),
285	'experience' => array(),
286	'external_url' => array(),
287	'featured' => array(),
288	'featured_image' => array(),
289	'featured_post' => array(),
290	'featured_story' => array(),
291	'fee' => array(),
292	'filter' => array(),
293	'follow' => array(),
294	'footer_text' => array(),
295	'from_header' => array(),
296	'fullscreen_view' => array(),
297	'gallery' => array(),
298	'genre' => array( 'searchable_in_all_content' => true ),
299	'guest_bio' => array(),
300	'guest_name' => array(),
301	'guests' => array( 'searchable_in_all_content' => true ),
302	'has_variations' => array(),
303	'hashtag' => array(),
304	'header_image' => array(),
305	'hidden_from_ui' => array(),
306	'hide_on_screen' => array(),
307	'homepage_order' => array(),
308	'hours' => array(),
309	'i18n' => array(),
310	'id' => array(),
311	'image' => array(),
312	'image_size' => array(),
313	'image_source' => array(),
314	'index' => array(),
315	'intro_text' => array( 'searchable_in_all_content' => true ),
316	'job_mention' => array( 'searchable_in_all_content' => true ),
317	'keywords' => array( 'searchable_in_all_content' => true ),
318	'latest_news' => array(),
319	'layout' => array(),
320	'link' => array(),
321	'link_dump' => array( 'searchable_in_all_content' => true ),
322	'link_url' => array(),
323	'location' => array(),
324	'logo' => array(),
325	'main_title' => array( 'searchable_in_all_content' => true ),
326	'maximum_entity_count' => array(),
327	'media' => array(),
328	'mentions' => array(),
329	'messages' => array(),
330	'meta_description' => array( 'searchable_in_all_content' => true ),
331	'meta_id' => array(),
332	'meta_index' => array(),
333	'meta_key' => array(),
334	'meta_value' => array(),
335	'modal-dialog-id' => array(),
336	'name' => array( 'searchable_in_all_content' => true ),
337	'nombre' => array( 'searchable_in_all_content' => true ),
338	'notes' => array( 'searchable_in_all_content' => true ),
339	'options' => array(),
340	'order_by' => array(),
341	'order_direction' => array(),
342	'original_cats' => array(),
343	'original_headers' => array(),
344	'original_link' => array(),
345	'original_message' => array(),
346	'original_subject' => array(),
347	'original_title' => array(),
348	'original_to' => array(),
349	'other_setting' => array(),
350	'page_canonical' => array(),
351	'page_layout' => array(),
352	'page_sidebar' => array(),
353	'page_tags' => array(),
354	'panels_data' => array(),
355	'parking' => array(),
356	'pdf_upload' => array(),
357	'people_mentioned' => array(),
358	'photo' => array(),
359	'play_time' => array(),
360	'position' => array(),
361	'post-rating' => array(),
362	'post_background' => array(),
363	'post_color' => array(),
364	'post_sidebar' => array(),
365	'post_subtitle' => array( 'searchable_in_all_content' => true ),
366	'price' => array(),
367	'publication' => array(),
368	'rating' => array(),
369	'ratings_average' => array(),
370	'ratings_score' => array(),
371	'ratings_users' => array(),
372	'relation' => array(),
373	'reply_to_header' => array(),
374	'required' => array(),
375	'returns' => array(),
376	'review_post' => array(),
377	'rule' => array(),
378	'section' => array( 'searchable_in_all_content' => true ),
379	'selected_links' => array(),
380	'session_transcript' => array(),
381	'settings' => array(),
382	'sex' => array(),
383	'shares_count' => array(),
384	'show_description' => array( 'searchable_in_all_content' => true ),
385	'show_page_title' => array(),
386	'show_notes' => array(),
387	'show_notes_preview' => array(),
388	'side' => array(),
389	'sidebar' => array(),
390	'site' => array(),
391	'situation' => array(),
392	'slide_template' => array(),
393	'slug' => array(),
394	'sortorder' => array(),
395	'source' => array(),
396	'start_date' => array(),
397	'status' => array(),
398	'styles' => array(),
399	'subtitle' => array( 'searchable_in_all_content' => true ),
400	'subtitulo' => array(),
401	'success' => array(),
402	'summary' => array( 'searchable_in_all_content' => true ),
403	'synopsis' => array( 'searchable_in_all_content' => true ),
404	'tel' => array(),
405	'tema' => array(),
406	'testimonial' => array(),
407	'testimonial_author' => array(),
408	'text_already_subscribed' => array(),
409	'text_error' => array(),
410	'text_invalid_email' => array(),
411	'text_not_subscribed' => array(),
412	'text_required_field_missing' => array(),
413	'text_subscribed' => array(),
414	'text_unsubscribed' => array(),
415	'thumbnail' => array(),
416	'time' => array(),
417	'time_jump_list' => array( 'searchable_in_all_content' => true ),
418	'title' => array( 'searchable_in_all_content' => true ),
419	'title_view' => array(),
420	'titre' => array( 'searchable_in_all_content' => true ),
421	'titulo' => array( 'searchable_in_all_content' => true ),
422	'to_header' => array(),
423	'toc' => array(),
424	'transcript' => array( 'searchable_in_all_content' => true ),
425	'transport_uri' => array(),
426	'type' => array(),
427	'url' => array(),
428	'validation' => array(),
429	'value' => array(),
430	'values' => array(),
431	'variation' => array(),
432	'video' => array(),
433	'video_type' => array(),
434	'video_url' => array(),
435	'videopress_guid' => array(),
436	'website' => array(),
437	'weight' => array(),
438	'year' => array(),
439
440	// wp.com martketplace search - @see https://wp.me/pdh6GB-Ax#comment-2104
441	'_app_icon' => array(),
442	'_featured_product_video' => array(),
443	'wpcom_marketplace_org_slug' => array(),
444	'_wc_general_product_dependency_theme' => array(),
445	'_wc_general_product_dependency_plugin' => array(),
446	'wpcom_marketplace_product_extra_fields' => array(),
447	'wccom_product_search_keywords' => array( 'searchable_in_all_content' => true ),
448	'_wccom_product_faqs' => array( 'searchable_in_all_content' => true ),
449	'wccom_product_features' => array( 'searchable_in_all_content' => true ),
450	'wccom_product_compatibility' => array( 'searchable_in_all_content' => true ),
451
452	); // end indexed post meta.
453
454	/**
455	* Postmeta being considered for indexing
456	* but currently not in the index
457	* this list is really only for documentation.
458	*
459	* @static
460	* @access private
461	* @var array
462	*/
463	private static $unindexed_postmeta = array(
464
465	// Core.
466	'_wp_attached_file' => array(),
467	'_wp_attachment_context' => array(),
468	'_wp_attachment_image_alt' => array(),
469	'_wp_attachment_is_custom_header' => array(),
470	'_wp_attachment_metadata' => array(),
471	'_wp_desired_post_slug' => array(),
472	'_wp_old_date' => array(),
473	'_wp_old_slug' => array(),
474	'_wp_page_template' => array(),
475
476	// WooCommerce products.
477	// See https://github.com/woocommerce/woocommerce/blob/8ed6e7436ff87c2153ed30edd83c1ab8abbdd3e9/includes/data-stores/class-wc-product-data-store-cpt.php#L21 .
478	'_backorders' => array(),
479	'_default_attributes' => array(),
480	'_download_expiry' => array(),
481	'_download_limit' => array(),
482	'_download_permissions_granted' => array(),
483	'_downloadable_files' => array(),
484	'_file_paths' => array(),
485	'_manage_stock' => array(),
486	'_product_image_gallery' => array(),
487	'_purchase_note' => array(),
488	'_recorded_sales' => array(),
489	'_sold_individually' => array(),
490	'_stock' => array(),
491	'_tax_class' => array(),
492	'_tax_status' => array(),
493	'_thumbnail_id' => array(),
494	'_upsell_ids' => array(),
495	'_variation_description' => array(),
496	'_virtual' => array(),
497	'_visibility' => array(),
498	'coupon_amount' => array(),
499	'default_source' => array(),
500	'discount_type' => array(),
501	'exclude_sale_items' => array(),
502	'expiry_date' => array(),
503
504	// Woocommerce orders and refunds.
505	// See https://github.com/woocommerce/woocommerce/blob/8ed6e7436ff87c2153ed30edd83c1ab8abbdd3e9/includes/data-stores/class-wc-order-data-store-cpt.php#L27 .
506	// See https://github.com/woocommerce/woocommerce/blob/b8a2815ae546c836467008739e7ff5150cb08e93/includes/data-stores/class-wc-order-refund-data-store-cpt.php#L20 .
507	'_billing_address_1' => array(),
508	'_billing_address_2' => array(),
509	'_billing_address_index' => array(),
510	'_billing_city' => array(),
511	'_billing_company' => array(),
512	'_billing_country' => array(),
513	'_billing_email' => array(),
514	'_billing_first_name' => array(),
515	'_billing_last_name' => array(),
516	'_billing_phone' => array(),
517	'_billing_postcode' => array(),
518	'_billing_state' => array(),
519	'_cart_discount' => array(),
520	'_cart_discount_tax' => array(),
521	'_completed_date' => array(),
522	'_created_via' => array(),
523	'_customer_ip_address' => array(),
524	'_customer_user_agent' => array(),
525	'_date_completed' => array(),
526	'_date_paid' => array(),
527	'_order_currency' => array(),
528	'_order_key' => array(),
529	'_order_shipping' => array(),
530	'_order_shipping_tax' => array(),
531	'_order_stock_reduced' => array(),
532	'_order_tax' => array(),
533	'_order_total' => array(),
534	'_order_version' => array(),
535	'_paid_date' => array(),
536	'_payment_method' => array(),
537	'_payment_method_title' => array(),
538	'_payment_tokens' => array(),
539	'_recorded_coupon_usage_counts' => array(),
540	'_refund_amount' => array(),
541	'_refund_reason' => array(),
542	'_refunded_by' => array(),
543	'_shipping_address_1' => array(),
544	'_shipping_address_2' => array(),
545	'_shipping_address_index' => array(),
546	'_shipping_city' => array(),
547	'_shipping_company' => array(),
548	'_shipping_country' => array(),
549	'_shipping_first_name' => array(),
550	'_shipping_last_name' => array(),
551	'_shipping_postcode' => array(),
552	'_shipping_state' => array(),
553	'_transaction_id' => array(),
554
555	// aioseop.
556	'_aioseop_description' => array(),
557	'_aioseop_keywords' => array(),
558	'_aioseop_title' => array(),
559
560	// yoast.
561	'_yoast_wpseo_authorship' => array(),
562	'_yoast_wpseo_bctitle' => array(),
563	'_yoast_wpseo_canonical' => array(),
564	'_yoast_wpseo_content_score' => array(),
565	'_yoast_wpseo_focuskw' => array(),
566	'_yoast_wpseo_focuskw_text_input' => array(),
567	'_yoast_wpseo_google-plus-description' => array(),
568	'_yoast_wpseo_google-plus-image' => array(),
569	'_yoast_wpseo_linkdex' => array(),
570	'_yoast_wpseo_meta-robots-adv' => array(),
571	'_yoast_wpseo_meta-robots-nofollow' => array(),
572	'_yoast_wpseo_meta-robots-noindex' => array(),
573	'_yoast_wpseo_metadesc' => array(),
574	'_yoast_wpseo_metakeywords' => array(),
575	'_yoast_wpseo_opengraph-description' => array(),
576	'_yoast_wpseo_opengraph-image' => array(),
577	'_yoast_wpseo_opengraph-title' => array(),
578	'_yoast_wpseo_primary_byline' => array(),
579	'_yoast_wpseo_primary_category' => array(),
580	'_yoast_wpseo_primary_product_cat' => array(),
581	'_yoast_wpseo_primary_sponsor-type' => array(),
582	'_yoast_wpseo_primary_tema_category' => array(),
583	'_yoast_wpseo_primary_wpdmcategory' => array(),
584	'_yoast_wpseo_primary_wt_portfolio_category' => array(),
585	'_yoast_wpseo_redirect' => array(),
586	'_yoast_wpseo_sitemap-include' => array(),
587	'_yoast_wpseo_sitemap-prio' => array(),
588	'_yoast_wpseo_title' => array(),
589	'_yoast_wpseo_twitter-description' => array(),
590	'_yoast_wpseo_twitter-image' => array(),
591
592	// bbpress.
593	'bbppu_read_by' => array(),
594	'_bbp_activity_id' => array(),
595	'_bbp_attachment' => array(),
596	'_bbp_attachment_upload_error' => array(),
597	'_bbp_forum_id' => array(),
598	'_bbp_forum_parent_id' => array(),
599	'_bbp_forum_subforum_count' => array(),
600	'_bbp_forum_type' => array(),
601	'_bbp_group_ids' => array(),
602	'_bbp_last_active_id' => array(),
603	'_bbp_last_active_time' => array(),
604	'_bbp_last_reply_id' => array(),
605	'_bbp_last_topic_id' => array(),
606	'_bbp_old_forum_id' => array(),
607	'_bbp_old_sticky_status' => array(),
608	'_bbp_old_topic_id' => array(),
609	'_bbp_post_id' => array(),
610	'_bbp_reply_count' => array(),
611	'_bbp_reply_is_private' => array(),
612	'_bbp_reply_to' => array(),
613	'_bbp_revision_log' => array(),
614	'_bbp_status' => array(),
615	'_bbp_sticky_topics' => array(),
616	'_bbp_topic_count' => array(),
617	'_bbp_topic_id' => array(),
618	'_bbp_total_reply_count' => array(),
619	'_bbp_total_topic_count' => array(),
620	'_bbp_voice_count' => array(),
621
622	// ???
623	'_locale' => array(),
624
625	// wp-job-manager.
626	'_job_title' => array(),
627	'_job_description' => array(),
628
629	// wpml.
630	'_wpml_media_duplicate' => array(),
631	'_wpml_media_featured' => array(),
632
633	// generic fields.
634	'ad_clicks_count' => array(),
635	'email' => array(),
636	'usage_count' => array(),
637	'user_mail' => array(),
638	'views' => array(),
639	'_EventAllDay' => array(),
640	'_EventCost' => array(),
641	'_EventCurrencyPosition' => array(),
642	'_EventCurrencySymbol' => array(),
643	'_EventDuration' => array(),
644	'_EventEndDate' => array(),
645	'_EventEndDateUTC' => array(),
646	'_EventOrganizerID' => array(),
647	'_EventOrigin' => array(),
648	'_EventShowMap' => array(),
649	'_EventShowMapLink' => array(),
650	'_EventStartDate' => array(),
651	'_EventStartDateUTC' => array(),
652	'_EventTimezone' => array(),
653	'_EventTimezoneAbbr' => array(),
654	'_EventURL' => array(),
655	'_EventVenueID' => array(),
656	'_OrganizerEmail' => array(),
657	'_OrganizerOrganizer' => array(),
658	'_OrganizerOrigin' => array(),
659	'_OrganizerPhone' => array(),
660	'_OrganizerWebsite' => array(),
661	'_VenueAddress' => array(),
662	'_VenueCity' => array(),
663	'_VenueCountry' => array(),
664	'_VenueOrigin' => array(),
665	'_VenuePhone' => array(),
666	'_VenueProvince' => array(),
667	'_VenueShowMap' => array(),
668	'_VenueShowMapLink' => array(),
669	'_VenueState' => array(),
670	'_VenueStateProvince' => array(),
671	'_VenueURL' => array(),
672	'_VenueVenue' => array(),
673	'_VenueVenueID' => array(),
674	'_VenueZip' => array(),
675	'_description' => array(),
676	'_edit_last' => array(),
677	'_feedback_all_fields' => array(),
678	'_feedback_author' => array(),
679	'_feedback_author_email' => array(),
680	'_feedback_author_url' => array(),
681	'_feedback_contact_form_url' => array(),
682	'_feedback_ip' => array(),
683	'_feedback_subject' => array(),
684	'_layout' => array(),
685	'_links_to' => array(),
686	'_links_to_target' => array(),
687	'_mail' => array(),
688	'_mail_2' => array(),
689	'_messages' => array(),
690	'_numero' => array(),
691	'_post_restored_from' => array(),
692	'_video_url' => array(),
693	'_website' => array(),
694
695	); // end unindexed post meta.
696
697	/**
698	* List of indexed taxonomy slugs - VARCHAR(32)
699	*
700	* @access private
701	* @static
702	*
703	* @var array
704	*/
705	private static $taxonomies_to_sync = array(
706
707	// Core.
708	'link_category',
709	'nav_menu',
710	'post_format', // Special, limited to certain values.
711
712	// bbpress.
713	'topic',
714	'topic-tag',
715	'topics',
716
717	// buddypress.
718	'bp-email-type',
719	'bp-email-type',
720	'bp_docs_access',
721	'bp_docs_associated_item',
722	'bp_docs_comment_access',
723	'bp_docs_doc_in_folder',
724	'bp_docs_folder_in_group',
725	'bp_docs_tag',
726	'bp_member_type',
727
728	// co-authors plus.
729	'author',
730
731	// events calendar plus.
732	// the events calendar.
733	'event-categories',
734	'event-category',
735	'event-tag',
736	'event-tags',
737	'event-type',
738	'event-venue',
739	'event_category',
740	'event_location',
741	'event_organizer',
742	'event_tag',
743	'event_type',
744	'event_type_2',
745	'event_users',
746	'events_categories',
747	'events_category',
748	'events_feeds',
749	'events_tags',
750	'tribe_events_cat',
751
752	// jetpack.
753	'jetpack-portfolio-tag',
754	'jetpack-portfolio-type',
755	'jetpack-search-tag0',
756	'jetpack-search-tag1',
757	'jetpack-search-tag2',
758	'jetpack-search-tag3',
759	'jetpack-search-tag4',
760	'jetpack-search-tag5',
761	'jetpack-search-tag6',
762	'jetpack-search-tag7',
763	'jetpack-search-tag8',
764	'jetpack-search-tag9',
765
766	// nextgen gallery.
767	'ngg_tag',
768
769	// polylang.
770	// wpml.
771	'language',
772	'post_translations',
773	'term_language',
774	'term_translations',
775	'translation_priority',
776
777	// woocommerce.
778	'documentation_category',
779	'pa_accessory-type',
780	'pa_actor',
781	'pa_age',
782	'pa_ambulance',
783	'pa_amount',
784	'pa_arm-roll',
785	'pa_aspectratio',
786	'pa_audiencerating',
787	'pa_author',
788	'pa_axle',
789	'pa_battery',
790	'pa_belakang',
791	'pa_binding',
792	'pa_body-type',
793	'pa_bore-x-stroke-mm',
794	'pa_box-cargo',
795	'pa_brakes',
796	'pa_brand',
797	'pa_brands',
798	'pa_bus',
799	'pa_c',
800	'pa_cabin-to-end',
801	'pa_capacity',
802	'pa_catalognumberlist',
803	'pa_ce-keurmerk',
804	'pa_chassis-front',
805	'pa_chassis-rear',
806	'pa_chassis-weight-kg',
807	'pa_chip-log',
808	'pa_clothing-size',
809	'pa_clutch',
810	'pa_clutch-type',
811	'pa_collection',
812	'pa_color',
813	'pa_colors',
814	'pa_colour',
815	'pa_compactor',
816	'pa_condition',
817	'pa_conditions-options',
818	'pa_cor',
819	'pa_couleur',
820	'pa_country',
821	'pa_countryregion-of-manufacture',
822	'pa_crane',
823	'pa_creator',
824	'pa_culoare',
825	'pa_customerpackagetype',
826	'pa_depan',
827	'pa_depan-belakang',
828	'pa_department',
829	'pa_design',
830	'pa_diameter',
831	'pa_diameter-cakram',
832	'pa_dimension-mm',
833	'pa_dimensions',
834	'pa_director',
835	'pa_disc-diameter',
836	'pa_drive-system',
837	'pa_dump',
838	'pa_ean',
839	'pa_eanlist',
840	'pa_edition',
841	'pa_electric-battery',
842	'pa_engine-model',
843	'pa_engine-size',
844	'pa_ethnicity',
845	'pa_exhaust-brake',
846	'pa_fabric',
847	'pa_farbe',
848	'pa_farg',
849	'pa_farge',
850	'pa_features',
851	'pa_final-gear-ratio',
852	'pa_finish',
853	'pa_fire-fighting',
854	'pa_fits',
855	'pa_flat-bed',
856	'pa_flavour',
857	'pa_format',
858	'pa_fragrance',
859	'pa_frame',
860	'pa_front',
861	'pa_front-overhang',
862	'pa_front-rear',
863	'pa_front-tread',
864	'pa_fuel-tank',
865	'pa_fuel-type',
866	'pa_garantie',
867	'pa_geadviseerd-accu-type',
868	'pa_gear-ratio',
869	'pa_gender',
870	'pa_genre',
871	'pa_gewicht-exclusief-accu',
872	'pa_gift-card-amount',
873	'pa_grade-ability-tan-o',
874	'pa_groesse',
875	'pa_gtin',
876	'pa_gvwr-gcwr',
877	'pa_hardwareplatform',
878	'pa_hazardousmaterialtype',
879	'pa_height',
880	'pa_hekmotor-of-boegmotor',
881	'pa_helmet-size',
882	'pa_hersteller',
883	'pa_high-blow-tank',
884	'pa_hoehe',
885	'pa_inhoud',
886	'pa_interchange-part-number',
887	'pa_isadultproduct',
888	'pa_isbn',
889	'pa_iseligiblefortradein',
890	'pa_itemdimensions',
891	'pa_itempartnumber',
892	'pa_kemudi-tipe',
893	'pa_kleur',
894	'pa_kopling-tipe',
895	'pa_label',
896	'pa_languages',
897	'pa_lbs',
898	'pa_legaldisclaimer',
899	'pa_lengte-aansluitkabel',
900	'pa_length',
901	'pa_liquid-tank',
902	'pa_location',
903	'pa_losse-motor-complete-set',
904	'pa_maat',
905	'pa_main-brake',
906	'pa_make',
907	'pa_manufacturer',
908	'pa_manufacturer-part-number',
909	'pa_manufacturermaximumage',
910	'pa_manufacturerminimumage',
911	'pa_manufacturerpartswarrantydesc',
912	'pa_masseinheit',
913	'pa_material',
914	'pa_mau-sac',
915	'pa_maximum-power-ps-rpm',
916	'pa_maximum-speed',
917	'pa_maximum-torque-kgm-rpm',
918	'pa_mediatype',
919	'pa_megethos',
920	'pa_merk',
921	'pa_metal-type',
922	'pa_min-turning-circle',
923	'pa_mixer',
924	'pa_model',
925	'pa_model-tipe',
926	'pa_model-type',
927	'pa_modelo',
928	'pa_mount',
929	'pa_mpn',
930	'pa_nicotine-strength',
931	'pa_nos-of-cylinder',
932	'pa_nos-of-tire',
933	'pa_numberofdiscs',
934	'pa_numberofitems',
935	'pa_numberofpages',
936	'pa_offset',
937	'pa_open-cargo',
938	'pa_operatingsystem',
939	'pa_options',
940	'pa_other-part-number',
941	'pa_overall-height',
942	'pa_overall-length',
943	'pa_overall-width',
944	'pa_overview',
945	'pa_packagedimensions',
946	'pa_packagequantity',
947	'pa_pages',
948	'pa_parking-brake',
949	'pa_part-number',
950	'pa_partnumber',
951	'pa_pattern',
952	'pa_pattern2',
953	'pa_performa',
954	'pa_pictureformat',
955	'pa_pin-size',
956	'pa_piston-displacement-cc',
957	'pa_ploshhad',
958	'pa_plug-type',
959	'pa_power',
960	'pa_product',
961	'pa_productgroup',
962	'pa_producttypename',
963	'pa_publicationdate',
964	'pa_publisher',
965	'pa_quantity',
966	'pa_rear',
967	'pa_rear-overhang',
968	'pa_rear-tread',
969	'pa_refrigerated-box',
970	'pa_region',
971	'pa_regioncode',
972	'pa_releasedate',
973	'pa_rem-parkir',
974	'pa_rem-pelambat',
975	'pa_rem-utama',
976	'pa_reverse',
977	'pa_runningtime',
978	'pa_scent',
979	'pa_schachtlengte',
980	'pa_seeds',
981	'pa_series',
982	'pa_setting',
983	'pa_sex',
984	'pa_shape',
985	'pa_shirt-size',
986	'pa_size',
987	'pa_sizes',
988	'pa_sku',
989	'pa_sky-lift',
990	'pa_sleeve-length',
991	'pa_snelheidsregeling',
992	'pa_staart',
993	'pa_steering',
994	'pa_steering-type',
995	'pa_storlek',
996	'pa_studio',
997	'pa_stuwkracht-lbs',
998	'pa_style',
999	'pa_suspensions',
1000	'pa_taille',
1001	'pa_talla',
1002	'pa_tamanho',
1003	'pa_tamano',
1004	'pa_taxi',
1005	'pa_ticket-type',
1006	'pa_tire-size',
1007	'pa_total-chassis-weight',
1008	'pa_towing-truck',
1009	'pa_tradeinvalue',
1010	'pa_trailer-t-head',
1011	'pa_transmisi-tipe',
1012	'pa_transmission',
1013	'pa_transmission-type',
1014	'pa_types',
1015	'pa_ukuran',
1016	'pa_upc',
1017	'pa_upclist',
1018	'pa_variation',
1019	'pa_vehicle-carrier',
1020	'pa_vergelijkbaar-stuwkracht',
1021	'pa_vermogen',
1022	'pa_voltage',
1023	'pa_volume',
1024	'pa_warranty',
1025	'pa_weight',
1026	'pa_wheel-base',
1027	'pa_wheel-configuration',
1028	'pa_wheel-disc-size',
1029	'pa_width',
1030	'pa_zout-water-geschikt',
1031	'product',
1032	'product-brand',
1033	'product_brand',
1034	'product-category',
1035	'product_cat',
1036	'product_delivery_time',
1037	'product_delivery_times',
1038	'product_price_label',
1039	'product_sale_labels',
1040	'product_shipping_class',
1041	'product_tag',
1042	'product_type',
1043	'product_unit',
1044	'product_visibility',
1045	'products',
1046
1047	// wp-job-manager.
1048	'job-category',
1049	'job-location',
1050	'job-type',
1051	'job_cat',
1052	'job_category',
1053	'job_listing_category',
1054	'job_listing_label',
1055	'job_listing_region',
1056	'job_listing_tag',
1057	'job_listing_type',
1058	'job_salary',
1059	'job_tag',
1060	'job_type',
1061	'jobman_category',
1062	'jobpost_category',
1063	'jobpost_job_type',
1064	'jobpost_location',
1065	'resume_category',
1066	'resume_groups',
1067	'resume_job_type',
1068	'resume_job_type',
1069	'resume_languages',
1070	'resume_region',
1071	'resume_skill',
1072	'resume_specialities',
1073
1074	// generic.
1075	'_resource',
1076	'acadp_categories',
1077	'acadp_locations',
1078	'action-group',
1079	'activity',
1080	'actor',
1081	'actors',
1082	'ad-group',
1083	'adace-ad-group',
1084	'adace-sponsor',
1085	'additional_features',
1086	'adv_location',
1087	'advanced_ads_groups',
1088	'advert_category',
1089	'affcoups_coupon_category',
1090	'affcoups_coupon_type',
1091	'ai_log_context',
1092	'ai_log_level',
1093	'al_product-cat',
1094	'aol_ad_category',
1095	'aol_ad_location',
1096	'aol_ad_type',
1097	'aol_application_status',
1098	'area',
1099	'article-slug',
1100	'asgarosforum-category',
1101	'asgarosforum-usergroup',
1102	'attachment_category',
1103	'attachment_tag',
1104	'atum_location',
1105	'audience_type',
1106	'avhec_catgroup',
1107	'bartype',
1108	'baths',
1109	'beds',
1110	'bepro_listing_types',
1111	'blog_category',
1112	'booked_custom_calendars',
1113	'brand',
1114	'brands',
1115	'business',
1116	'business_cat',
1117	'business_category',
1118	'bwg_tag',
1119	'byline',
1120	'calendar_category',
1121	'calendar_feed',
1122	'calendar_type',
1123	'campaign_category',
1124	'campaign_tag',
1125	'carousel_cat',
1126	'carousels_category',
1127	'case27_job_listing_tags',
1128	'categories',
1129	'category_media',
1130	'category_portfolio',
1131	'celebrity_cat',
1132	'chapters',
1133	'chronosly_category',
1134	'city',
1135	'classified_listing_type',
1136	'client-types',
1137	'clients_groups',
1138	'cm-business-category',
1139	'cmdm_category',
1140	'cn_log_type',
1141	'coderevolution_post_source',
1142	'collection',
1143	'community',
1144	'companies',
1145	'company',
1146	'cont_category',
1147	'content_audit',
1148	'country',
1149	'course',
1150	'course-cat',
1151	'course-category',
1152	'course_cat',
1153	'course_category',
1154	'course_difficulty',
1155	'course_tag',
1156	'courses_type',
1157	'cp_campaign',
1158	'cp_recipe_category',
1159	'csco_post_featured',
1160	'ct_status',
1161	'ctl-stories',
1162	'cuisine',
1163	'dc_vendor_shop',
1164	'ddownload_category',
1165	'ddownload_tag',
1166	'dealstore',
1167	'department',
1168	'departments',
1169	'department-company',
1170	'developed-by',
1171	'dfads_group',
1172	'dgfw_gift_categories',
1173	'director',
1174	'district',
1175	'dlm_download_category',
1176	'dlm_download_tag',
1177	'doc_tag',
1178	'document-category',
1179	'document-type',
1180	'download_artist',
1181	'download_category',
1182	'download_tag',
1183	'downloads_filter',
1184	'dps_book',
1185	'dt_gallery_category',
1186	'dt_logos_category',
1187	'dt_portfolio_category',
1188	'dt_team_category',
1189	'dt_testimonials_category',
1190	'dtcast',
1191	'dtcreator',
1192	'dtdirector',
1193	'dtnetworks',
1194	'dtstudio',
1195	'dtyear',
1196	'dvteamtaxonomy',
1197	'dwqa-question_category',
1198	'dwqa-question_tag',
1199	'eafl_category',
1200	'easy-testimonial-category',
1201	'ecwd_event_category',
1202	'edd_log_type',
1203	'edition',
1204	'ef_editorial_meta',
1205	'ef_usergroup',
1206	'element_category',
1207	'elementor_library_type',
1208	'employees_category',
1209	'encyclopedia-tag',
1210	'envira-tag',
1211	'epkb_post_type_1_category',
1212	'espresso_event_categories',
1213	'espresso_event_type',
1214	'essential_grid_category',
1215	'et_post_format',
1216	'faq-group',
1217	'faq-tags',
1218	'faq-topic',
1219	'faq_cat',
1220	'faq_categories',
1221	'faq_category',
1222	'faqs-category',
1223	'fdm-menu-section',
1224	'feature',
1225	'featured_item_category',
1226	'featured_item_tag',
1227	'feedback_type',
1228	'feeds',
1229	'fl-builder-template-type',
1230	'flamingo_inbound_channel',
1231	'follow_up_email_campaign',
1232	'follow_up_email_type',
1233	'following_users',
1234	'football-team-taxo',
1235	'fpd_design_category',
1236	'gallery-category',
1237	'gallery_cat',
1238	'gallery_categories',
1239	'gallery_category',
1240	'gallery_entries',
1241	'gallerycat',
1242	'gd_event_tags',
1243	'gd_eventcategory',
1244	'gd_place_tags',
1245	'gd_placecategory',
1246	'genre',
1247	'genres',
1248	'gg_connect_hub',
1249	'give_log_type',
1250	'gn-genre',
1251	'gn-location-1',
1252	'gn-location-2',
1253	'gn-location-3',
1254	'gp_hubs',
1255	'gp_portfolios',
1256	'gp_videos',
1257	'group',
1258	'group-documents-category',
1259	'groups',
1260	'guest',
1261	'hashtags',
1262	'hotel_facility',
1263	'ia_invited_groups',
1264	'ia_invitees',
1265	'incsub_wiki_category',
1266	'industry',
1267	'ingredient',
1268	'insight-type',
1269	'issue',
1270	'issuem_issue',
1271	'issuem_issue_tags',
1272	'jbp_category',
1273	'karma-slider-category',
1274	'klaviyo_shop_cart_status',
1275	'kwlogos-carousel',
1276	'layout_category',
1277	'layout_type',
1278	'ld_course_category',
1279	'ld_course_tag',
1280	'ld_lesson_category',
1281	'ld_lesson_tag',
1282	'ld_topic_tag',
1283	'lesson-tag',
1284	'level',
1285	'lingotek_hash',
1286	'lingotek_profile',
1287	'link_library_category',
1288	'linkage',
1289	'list-tags',
1290	'listing-category',
1291	'listing_amenities',
1292	'listing_category',
1293	'liveblog',
1294	'llms_access_plan_visibility',
1295	'llms_product_visibility',
1296	'localisation',
1297	'location',
1298	'location-tag',
1299	'locations',
1300	'magazine',
1301	'map_location_categories',
1302	'masonry_gallery_category',
1303	'mc-event-category',
1304	'mec_category',
1305	'mec_location',
1306	'mec_organizer',
1307	'media-category',
1308	'media-tags',
1309	'media_category',
1310	'media_folder',
1311	'member_cat',
1312	'mentions',
1313	'mesh_template_types',
1314	'ml-slider',
1315	'module',
1316	'module-tag',
1317	'module_width',
1318	'movie_cat',
1319	'mpp-component',
1320	'mpp-status',
1321	'mpp-type',
1322	'muvicast',
1323	'muvicountry',
1324	'muvidirector',
1325	'muviindex',
1326	'muviquality',
1327	'muviyear',
1328	'news-category',
1329	'news-tag',
1330	'news-type',
1331	'news_type_cat',
1332	'news_category',
1333	'nova_menu',
1334	'nova_menu_item_label',
1335	'offer-types',
1336	'organization',
1337	'our_team_category',
1338	'page_category',
1339	'page_condition',
1340	'parisrestaurant',
1341	'parissauna',
1342	'partner_category',
1343	'partners',
1344	'paswdestinatari',
1345	'paypal_ipn_type',
1346	'pdf_lv_tag',
1347	'pec_events_category',
1348	'people',
1349	'people-department',
1350	'people-expertise',
1351	'people-location',
1352	'perfect_quotes_category',
1353	'performer',
1354	'person',
1355	'personnal-category',
1356	'pexcontentslider_category',
1357	'pexfullslider_category',
1358	'pexnivoslider_category',
1359	'pexpricing_category',
1360	'pexservice_category',
1361	'pextestimonial_category',
1362	'pf_feed_item_tag',
1363	'pg_sas_type',
1364	'photo_tag',
1365	'phototype',
1366	'pj-categs',
1367	'pj-tags',
1368	'pl-categs',
1369	'placement',
1370	'plan_status',
1371	'platform',
1372	'player',
1373	'plugins_categories',
1374	'podcast',
1375	'pojo_sidebars',
1376	'popup_category',
1377	'pornstars',
1378	'portada',
1379	'portcat',
1380	'portfolio-category',
1381	'portfolio-gallery',
1382	'portfolio-status',
1383	'portfolio-skills',
1384	'portfolio-tag',
1385	'portfolio-tags',
1386	'portfolio-type',
1387	'portfolio-types',
1388	'portfolio_cat',
1389	'portfolio_categories',
1390	'portfolio_category',
1391	'portfolio_cats',
1392	'portfolio_client',
1393	'portfolio_entries',
1394	'portfolio_filter',
1395	'portfolio_in',
1396	'portfolio_label',
1397	'portfolio_skills',
1398	'portfolio_tag',
1399	'portfolio_tags',
1400	'portfolio_type',
1401	'posicao',
1402	'post-type',
1403	'post_format',
1404	'post_series',
1405	'pp_editorial_meta',
1406	'pp_notify_role',
1407	'pp_usergroup',
1408	'pricingcats',
1409	'print_section',
1410	'print_status',
1411	'product_asset_class',
1412	'product_name',
1413	'programs',
1414	'project-attributes',
1415	'project-cat',
1416	'project-category',
1417	'project-type',
1418	'project_category',
1419	'project_collection',
1420	'project_tag',
1421	'projects_category',
1422	'projects_tag',
1423	'prominence',
1424	'promotion-categories',
1425	'property-city',
1426	'property-feature',
1427	'property-status',
1428	'property-type',
1429	'property-types',
1430	'property_action_category',
1431	'property_area',
1432	'property_category',
1433	'property_city',
1434	'property_feature',
1435	'property_status',
1436	'property_type',
1437	'province',
1438	'provinces',
1439	'publisher',
1440	'pwb-brand',
1441	'qmn_log_type',
1442	'qualification',
1443	'qualifications',
1444	'quality',
1445	'question-category',
1446	'question-tag',
1447	'question-type',
1448	'question_cat',
1449	'question_category',
1450	'question_tag',
1451	'quiz',
1452	'quiz-type',
1453	'quote_status',
1454	'rating',
1455	'reaction',
1456	'recipe-category',
1457	'recipe_category',
1458	'recipe_type',
1459	'region',
1460	'registrant-event',
1461	'related_keywords',
1462	'release-date',
1463	'resource-type',
1464	'resource_category',
1465	'resource_type',
1466	'resourcetype',
1467	'review-type',
1468	'review_category',
1469	'rodzaj',
1470	'role',
1471	'room_category',
1472	'room_tag',
1473	'roomtype',
1474	'rubriek_categorie',
1475	'savedreply',
1476	'schools',
1477	'scope',
1478	'scores_cat',
1479	'sdm_categories',
1480	'sdm_tags',
1481	'season',
1482	'secondary_html_features',
1483	'section',
1484	'sector',
1485	'series',
1486	'series_of_posts',
1487	'services_group',
1488	'serving',
1489	'shop_cart_status',
1490	'shop_cat',
1491	'shop_order_status',
1492	'shop_vendor',
1493	'shop_warranty_status',
1494	'shopp_category',
1495	'shopr_category',
1496	'show',
1497	'simple_link_category',
1498	'site-review-category',
1499	'sizes',
1500	'skill',
1501	'skill_level',
1502	'skills',
1503	'sld_cat',
1504	'slide-page',
1505	'slide-types',
1506	'slide_categories',
1507	'slide_type',
1508	'slider',
1509	'slider-locations',
1510	'slider_category',
1511	'slides_category',
1512	'slideshow',
1513	'sm-category',
1514	'snax_format',
1515	'sngg_media_tags',
1516	'solution_channel',
1517	'source_domain',
1518	'source_id',
1519	'sp_league',
1520	'sp_position',
1521	'sp_role',
1522	'sp_season',
1523	'sp_venue',
1524	'speaker',
1525	'speakers',
1526	'special-feature',
1527	'specialty',
1528	'spnl_log_type',
1529	'sponsor_categories',
1530	'sponsor_category',
1531	'sponsor_type',
1532	'spot_tag',
1533	'st_af_category',
1534	'st_af_tags',
1535	'staff',
1536	'staff-member-category',
1537	'staff-member-group',
1538	'staff_category',
1539	'staffgroups',
1540	'state',
1541	'status',
1542	'store',
1543	'stores',
1544	'studio',
1545	'study_level',
1546	'style',
1547	'style_category',
1548	'sub_transaction_action',
1549	'sub_transaction_result',
1550	'subcategory',
1551	'subject',
1552	'subscription_status',
1553	'swift-slider-category',
1554	'syn_sitegroup',
1555	'szbl-content-tag',
1556	'task-queue',
1557	'tax_feature',
1558	'tcb_symbols_tax',
1559	'tcp_product_category',
1560	'team',
1561	'team-category',
1562	'team_cat',
1563	'team_categories',
1564	'team_category',
1565	'team_cats',
1566	'team_department',
1567	'team_designation',
1568	'team_group',
1569	'team_member_position',
1570	'team_mfcategory',
1571	'teams',
1572	'tenant_categories',
1573	'tenant_location',
1574	'tender-category',
1575	'test-type',
1576	'testimonial-category',
1577	'testimonial-group',
1578	'testimonial-types',
1579	'testimonial_categories',
1580	'testimonial_category',
1581	'testimonials-category',
1582	'testimonials_category',
1583	'th_events_cat',
1584	'th_galleries_cat',
1585	'thegem_clients_sets',
1586	'thegem_news_sets',
1587	'thegem_portfolios',
1588	'thegem_quickfinders',
1589	'thegem_teams',
1590	'thegem_testimonials_sets',
1591	'theme',
1592	'themefusion_es_groups',
1593	'themes_categories',
1594	'themo_cpt_group',
1595	'themo_project_type',
1596	'themo_room_type',
1597	'thirstylink-category',
1598	'ticket_channel',
1599	'ticket_priority',
1600	'timeline_post_tag',
1601	'tipo',
1602	'tipologie',
1603	'tips',
1604	'tm-testimonials_category',
1605	'tm_testimonial_group',
1606	'tooltips_categories',
1607	'tour_category',
1608	'tour_destination',
1609	'tour_facility',
1610	'tour_phys',
1611	'tour_type',
1612	'tp_event_category',
1613	'transmission',
1614	'treatment-type',
1615	'tribe_events_cat',
1616	'truethemes-gallery-category',
1617	'tsas-category',
1618	'tshowcase-categories',
1619	'tsml_region',
1620	'ttshowcase_groups',
1621	'tvo_tags',
1622	'type',
1623	'types',
1624	'u_course_cat',
1625	'u_department',
1626	'u_event_cat',
1627	'ufaq-category',
1628	'ufaq-tag',
1629	'um_hashtag',
1630	'um_user_tag',
1631	'uncodeblock_category',
1632	'upg_cate',
1633	'urp-review-category',
1634	'us_portfolio_category',
1635	'us_testimonial_category',
1636	'user-group',
1637	'user_category',
1638	'user_status',
1639	'vendor',
1640	'venue',
1641	'video-category',
1642	'video-series',
1643	'video-tag',
1644	'video_category',
1645	'video_tag',
1646	'videos',
1647	'videos_categories',
1648	'voice_category',
1649	'vtmin_rule_category',
1650	'vtprd_rule_category',
1651	'w2dc-category',
1652	'w2dc-location',
1653	'w2dc-tag',
1654	'wcb_sponsor_level',
1655	'wcb_track',
1656	'wccf_checkout_field_field_type',
1657	'wccf_checkout_field_status',
1658	'wccf_order_field_field_type',
1659	'wccf_order_field_status',
1660	'wccf_product_field_field_type',
1661	'wccf_product_field_status',
1662	'wccf_product_prop_field_type',
1663	'wccf_product_prop_status',
1664	'wccf_user_field_field_type',
1665	'wccf_user_field_status',
1666	'wcfm_knowledgebase_category',
1667	'wcm_task_category',
1668	'wcpv_product_vendors',
1669	'wcs-instructor',
1670	'wcs-room',
1671	'wcs-type',
1672	'wdca_ad_categories',
1673	'webinar_type_cat',
1674	'where',
1675	'who',
1676	'wiki-category',
1677	'wiki_cats',
1678	'wl_entity_type',
1679	'workout_entries',
1680	'works-category',
1681	'wp-rest-api-log-method',
1682	'wp-rest-api-log-source',
1683	'wp-rest-api-log-status',
1684	'wp-type-activity-types',
1685	'wp-type-contacts-subtype',
1686	'wp-type-group',
1687	'wp_bannerize_tax',
1688	'wp_log_type',
1689	'wp_super_faq_category',
1690	'wpbdm-region',
1691	'wpbdp_category',
1692	'wpbdp_tag',
1693	'wpcm_make_model',
1694	'wpdmcategory',
1695	'wpfb_file_category',
1696	'wpfcas-category',
1697	'wpfd-category',
1698	'wplead_list_category',
1699	'wplss_logo_showcase_cat',
1700	'wpm-testimonial-category',
1701	'wpmf-category',
1702	'wpostahs-slider-category',
1703	'wprm_course',
1704	'wprm_cuisine',
1705	'wprm_ingredient',
1706	'wprm_keyword',
1707	'wprss_category',
1708	'wps_forum',
1709	'wpsc-variation',
1710	'wpsc_log_type',
1711	'wpsc_product_category',
1712	'wpseo_locations_category',
1713	'wpsisac_slider-category',
1714	'wpsl_store_category',
1715	'wpt_category',
1716	'wpt_result',
1717	'wpt_scale',
1718	'wpv_sermons_category',
1719	'wpvqgr_tag',
1720	'writer',
1721	'wyz_business_category',
1722	'wyz_business_rating_category',
1723	'wyz_business_tag',
1724	'wzkb_category',
1725	'year',
1726	'years',
1727	'yith_product_brand',
1728	'yith_shop_vendor',
1729	'yst_prominent_words',
1730	'zipcode',
1731	'zoninator_zones',
1732	'zrf_field_group',
1733
1734	// End The Backlog @see https://wp.me/p9MPsk-X0.
1735	'bill-status',
1736	'etb-audience',
1737	'etb-state',
1738	'etb-target',
1739	'etb-topic',
1740	'etb-year',
1741	'foia-response-status',
1742	'target-type',
1743	'timeline-pillar',
1744	'timeline-type',
1745
1746	// wp.com martketplace search - @see https://wp.me/pdh6GB-Ax#comment-2104
1747	'wpcom_marketplace_categories',
1748
1749	// wp.com a8c-support-theme taxonomies.
1750	'kb_category',
1751	'kb_tag',
1752
1753	// coolhunting.com
1754	'article-type',
1755
1756	); // end taxonomies.
1757
1758	/**
1759	* List of options to sync
1760	*
1761	* @access private
1762	* @static
1763	*
1764	* @var array
1765	*/
1766	private static $options_to_sync = array(
1767	'jetpack_search_ai_prompt_override',
1768	'jetpack_search_color_theme',
1769	'jetpack_search_result_format',
1770	'jetpack_search_default_sort',
1771	'jetpack_search_overlay_trigger',
1772	'jetpack_search_excluded_post_types',
1773	'jetpack_search_highlight_color',
1774	'jetpack_search_enable_sort',
1775	'jetpack_search_inf_scroll',
1776	'jetpack_search_show_powered_by',
1777	'jetpack_search_experience',
1778	'jetpack_search_ai_answers_enabled',
1779	'jetpack_search_suggestions_enabled',
1780	'jetpack_search_override_woocommerce_search_template',
1781	'reader_chat',
1782	'instant_search_enabled',
1783	); // end options.
1784
1785	/*
1786	* Taxonomies we know don't sync.
1787	* See also sync/src/class-defaults.php
1788	*
1789	* 'network'
1790	* 'post_status'
1791	* 'product_cat'
1792	* 'tags'
1793	*
1794	*/
1795
1796	//
1797	// Hooks into sync.
1798
1799	/**
1800	* Add Search post meta to the post meta whitelist.
1801	*
1802	* @param array $list Existing post meta whitelist.
1803	* @return array Updated post meta whitelist.
1804	*/
1805	public function add_search_post_meta_whitelist( $list ) {
1806	return array_merge( $list, static::get_all_postmeta_keys() );
1807	}
1808
1809	/**
1810	* Add Search options to the options whitelist.
1811	*
1812	* @param array $list Existing options whitelist.
1813	* @return array Updated options whitelist.
1814	*/
1815	public function add_search_options_whitelist( $list ) {
1816	return array_merge( $list, static::get_all_option_keys() );
1817	}
1818
1819	/**
1820	* Add AI Answer CPTs to the post types sync whitelist when AI Answers is enabled.
1821	*
1822	* @param array $list Existing post types whitelist.
1823	* @return array Updated whitelist.
1824	*/
1825	public function add_ai_answer_post_types( $list ) {
1826	if ( ! apply_filters( 'jetpack_search_ai_answers_enabled', (bool) get_option( 'jetpack_search_ai_answers_enabled', false ) ) ) {
1827	return $list;
1828	}
1829	$list[] = 'wp_guideline';
1830	return $list;
1831	}
1832
1833	// Indexing functions for wp.com.
1834
1835	/**
1836	* Check whether a postmeta or taxonomy 'key' is in the indexable
1837	* list. This is called by the indexing code on wp.com to decide
1838	* whether to include something in the index.
1839	*
1840	* @static
1841	* @access public
1842	*
1843	* @param string $type Either 'postmeta' or 'taxonomy'.
1844	* @param string $key The postmeta key or taxonomy name.
1845	* @return boolean
1846	*/
1847	public static function is_indexable( $type, $key ) {
1848	switch ( $type ) {
1849	case 'postmeta':
1850	return isset( self::$postmeta_to_sync[ $key ] );
1851	case 'taxonomy':
1852	return in_array( $key, self::$taxonomies_to_sync, true );
1853	}
1854	return false;
1855	}
1856
1857	/**
1858	*
1859	* Get the indexing spec for a postmeta key.
1860	*
1861	* @static
1862	* @access public
1863	*
1864	* @param string $key The postmeta key.
1865	* @return array The spec.
1866	*/
1867	public static function get_postmeta_spec( $key ) {
1868	return self::$postmeta_to_sync[ $key ];
1869	}
1870
1871	/**
1872	* Get all post meta keys that get synced.
1873	*
1874	* @access public
1875	*
1876	* @return array List of post meta keys that get synced.
1877	*/
1878	public static function get_all_postmeta_keys() {
1879	return array_keys( self::$postmeta_to_sync );
1880	}
1881
1882	/**
1883	* Get all option keys that get synced.
1884	*
1885	* @access public
1886	*
1887	* @return array List of option keys that get synced.
1888	*/
1889	public static function get_all_option_keys() {
1890	return self::$options_to_sync;
1891	}
1892
1893	/**
1894	* Get all unindexed postmeta.
1895	* This is mostly for testing.
1896	*
1897	* @access public
1898	*
1899	* @return array List of postmeta that are not synced.
1900	*/
1901	public static function get_all_unindexed_postmeta_keys() {
1902	return array_keys( self::$unindexed_postmeta );
1903	}
1904
1905	/**
1906	* Get all taxonomies that get synced.
1907	* This is mostly for testing.
1908	*
1909	* @access public
1910	*
1911	* @return array List of taxonomies that get synced.
1912	*/
1913	public static function get_all_taxonomies() {
1914	return self::$taxonomies_to_sync;
1915	}
1916	}
1917